# Madisonville (US INV)

**UN/LOCODE:** US INV  
**Country:** United States  
**Water Body:** Gulf of Mexico; North Atlantic Ocean  
**Harbor Size:** Very Small  
**Harbor Type:** River (Natural)  
**GPS:** 30.4000, -90.1500

Despite its UN/LOCODE listing, Madisonville is not a commercial cargo gateway: the small Louisiana town on the Tchefuncte River trades on recreational boating, marinas and its maritime-museum heritage rather than container or breakbulk traffic. Shipbuilding faded after the Jahncke yard wound down around 1970, and today no scheduled freight, customs clearance or terminal handling operates at the waterfront. Shippers with cargo for the region route through New Orleans or the Port of South Louisiana on the Mississippi.

## Transit Times & Routes

- [Los Angeles → Shanghai](https://www.freight-academy.com/en/transit-time/los-angeles-shanghai)
- [Los Angeles → Shenzhen](https://www.freight-academy.com/en/transit-time/los-angeles-shenzhen)
- [Los Angeles → Guangzhou](https://www.freight-academy.com/en/transit-time/los-angeles-guangzhou)
- [Los Angeles → Hong Kong](https://www.freight-academy.com/en/transit-time/los-angeles-hong-kong)
- [Los Angeles → Tokyo](https://www.freight-academy.com/en/transit-time/los-angeles-tokyo)
- [Los Angeles → Busan](https://www.freight-academy.com/en/transit-time/los-angeles-busan)

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*Freight Academy — Seaport Profile: [https://www.freight-academy.com/en/information/seaports/madisonville-port-us-inv](https://www.freight-academy.com/en/information/seaports/madisonville-port-us-inv)*

*Markdown mirror: [https://www.freight-academy.com/api/md/seaports/en/madisonville-port-us-inv](https://www.freight-academy.com/api/md/seaports/en/madisonville-port-us-inv)*

*LLM-Summary (JSON): https://www.freight-academy.com/api/v1/seaports/madisonville-port-us-inv/llm-summary?lang=en*